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2. What is the strength of the relationship between citizens' race and attitude toward police? Calculate & interpret lambda to answer this question. Attitude Race Totals towards police Black White Positive 75 155 230 Negative 130 110 240 Totals 205 265 470 3. Relationship between Aptitude Test (x) & Statistics Grade (y) The formula for this regression line is: Y = 26.768 + 0.644x a. If a student made an 80 on the aptitude test, what grade would we expect her to make in statistics? b. The standard deviation (s) for x = 12.083 and the (s) for y = 11.225, calculate for Pearson's r. How would you interpret this correlation? c. Calculate and interpret the coefficient of determination (r )